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Abstract

Fig. A 1 shows a Western blot analyzing the specificity of the antibodies against g- and z-isotypes. These antibodies were probed in different mammalian species (Fig. A 2). Coatomer was labeled with [35S]-methionine for different time periods, and the incorporation of [35S]-methionine as well as the corresponding stoichiometries of the coatomer subunits are shown in Fig. A 3. Characterization of anti-coatomer antibody 883 is depicted in Fig. A 4.